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Unformatted text preview: Grodin, Micah Homework 11 Due: Nov 22 2005, 11:00 pm Inst: Sara Sutcliffe 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points Which of the following is a major component of natural gas? 1. propane 2. butane 3. ethane 4. methane correct Explanation: 002 (part 1 of 1) 10 points Two isomers cannot be differentiated by their 1. boiling point. 2. chemical formula. correct 3. melting point. 4. chemical structure. Explanation: Isomers are different compounds that have the same molecular formula. The physical properties of different compounds are always different. 003 (part 1 of 1) 10 points Which of the following is a disadvantage of adding methanol (CH 3 OH) to gasoline? 1. It is easily destabilized by small amounts of moisture which can lead to corrosion. cor- rect 2. Its presence lowers the emission levels of hydrocarbons, carbon monoxide and nitrogen oxides from automobiles. 3. It results in a lower exhaust tempera- ture. 4. It results in a higher octane rating. Explanation: 004 (part 1 of 1) 10 points What is an example of biomass? 1. hydrogen gas 2. wood correct 3. water 4. petroleum 5. natural gas Explanation: 005 (part 1 of 1) 10 points During petroleum refining, catalysts play an extremely important role during the 1. cracking and reforming processes. cor- rect 2. environmental cleanup of oil wells....
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This homework help was uploaded on 04/07/2008 for the course CH 304k/305k taught by Professor Sutcliffe during the Fall '05 term at University of Texas at Austin.
- Fall '05